TripleSat

(0.8m)

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TripleSat Satellite Sensor

(0.8m)

The TripleSat/DMC3 Constellation was successfully launched on July 10, 2015, from Dhawan Space Centre, Sriharikota, India, and delivers 0.8m panchromatic and 3.2m multispectral high-resolution satellite imagery.

TripleSat (TriSat) Satellite Sensor (0.8m)

The TripleSat satellite constellation consists of three (3) identical optical earth observation satellites, which makes it possible to target anywhere on earth once per day. Satellite imagery is available at 0.8m high-resolution imagery products with a 23.4km swath. Both space and ground segments have been designed to efficiently deliver guaranteed timely information.

Sample Images

TripleSat Satellite Image Gallery

Rio De Janeiro, Brazil

* Click on thumbnail to view in full resolution.

For more information on any of our products and image processing services, please contact us for a complimentary consultation.

TripleSat Satellite Sensor Specifications

Launch Details

Launch Date: July 10, 2015, 16:28 UTC
Vehicle: PSLV-XL (Polar Satellite Launch Vehicle)
Site: Satish Dhawan Space Centre, Sriharikota, India
Expected Mission Life: at least 7 years for each of three identical satellites

TripleSat Components

Satellite Model: DMC-3 (SSTL-300S1), a three satellite constellation (i.e. TripleSat-1, 2 and 3) built by Surrey Satellite Technology (SSTL)
Dimensions: approximately 3m tall x 0.87m diameter with body mounted solar array; 458kg
Solar Array: 2.27 square meters of Gallium-Arsenide solar panels, 15Ahr battery
Control Systems:
- 3-axis stabilized
- Actuators: four SSTL-100SP-O reaction wheels, four 200SP-M momentum wheels
- Altitude determination: Rigel-L star trackers, sun sensors and SGR-10 GPS
Onboard Storage Capacity: 544 gigabytes
Ground Communication Systems:
- Imagery & metadata downlink – 500Mbits per second, X-band
- Commands & telemetry –S-Band
- Focal Plane
  - Panchromatic CCD module – linear array, 4stacks, 6408 pixels/stack
  - Multispectral CCD module – linear array, 4 stacks, 1602 pixels/stack
Optical Sensor Assembly: 6.667-m focal length, 420mm diameter aperture

Orbit Characteristics

Altitude: 651 km; three satellites in same orbital plane exactly 120° apart
Period: 97.7 minutes
Inclination: 98.1°
Direction: sun-synchronous circular, south to north (across the lit side of Earth)
Equatorial Crossing Time: 10:30 AM local time (approximate; across lit side of Earth)
Revisit Frequency:
- 45° off-nadir– daily

Imaging System

Spectral Bands:
- Panchromatic
- 4-band multispectral (blue, green, red and near-infrared red [NIR])
Sensor Resolution:
- At nadir – 0.8 m panchromatic & 3.2m multispectral
- 25° off-nadir – 1 m panchromatic & 4 m multispectral
Spectral Band Wavelength Range: (in nm)
- Panchromatic –450 to 650
- Blue –440 to 510
- Green –510 to 590
- Red –600 to 670
- NIR –760 to 910

Dynamic Range

10-bits

Collection Capabilities

Footprint Width: 23.8 km (at nadir)
Maximum Collection Geometry: (at 45° off-nadir)
- Mono, large area –23.8 km x 23.8 km (1 strips wide, 1×1 scene)
- Mono, long strip – 4000 km x 23.8 km (1 strip only)
- Stereo, large area – 42 km x 47.2km (2 pairs wide, 2×2 scenes)
Retargeting Ability: 40 sec (time to slew 30 degrees, fast response mode)
Daily Collection Capacity: 634,441 sq km
Georeferenced Horizontal Accuracy: < 50-m 1-sigma (Nadir pointing, without Ground Control Points, no star tracker blinding)

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FAQ’S

Frequently Asked Questions

How to find Geographic Coordinates in Google maps?

To find geographic coordinates in Google Maps, you can follow these steps:

Open Google Maps in your web browser or on your mobile device.
Search for the location you want to find the geographic coordinates for by entering the address, landmark, or name of the place in the search bar at the top of the page.
Once the location is displayed on the map, right-click (or long-press on mobile) the exact point on the map where you want to find the coordinates. This will open a small menu.
In the menu that appears, click on “What’s here?” or “What’s here? – Coordinates” option. On mobile devices, you may need to tap on the location marker first to reveal the menu options.
A small information box will appear at the bottom of the screen, displaying the latitude and longitude coordinates of the selected point. The coordinates will be shown in decimal degrees format.
You can click on the coordinates in the information box to expand it and see the coordinates in different formats, such as degrees, minutes, and seconds (DMS) or Universal Transverse Mercator (UTM) format.

How to Create a KML File in Google Earth?

To create a KML (Keyhole Markup Language) file in Google Earth, you can follow these steps:

Download Google Earth Pro and Open on your computer.
Navigate to the location or area you want to create a KML file for by using the search bar, zooming in/out, and panning on the map.
Customize the view and layers in Google Earth Pro to include the specific data or elements you want to include in your KML file. This can include placemarks, paths, polygons, overlays, images, and more.
Once you have set up the desired view and layers, go to the “Add” menu at the top of the screen and select the type of element you want to add (e.g., placemark, path, polygon, image overlay).
Follow the prompts to add the specific element and provide the necessary information, such as location coordinates, name, description, and any additional properties or styling options.
Repeat the previous step if you want to add more elements to your KML file.
After adding all the desired elements, go to the “File” menu and select “Save Place As.”
In the “Save Place As” dialog box, choose a location on your computer where you want to save the KML file.
Specify the name of the KML file, ensuring it has the .kml extension (e.g., myfile.kmL), you may need to select KML as GoogleEarth defaults to KMZ formats.
Click the “Save” button to save the KMZ file to the specified location on your computer.

How To Order Commercial Satellite Maps?

Ordering commercial high-resolution and medium-resolution satellite maps process:

Identify your requirements: Determine the specific needs for the satellite maps, including the desired resolution, geographic coverage, acquisition date, and any additional specifications such as spectral bands or cloud cover constraints.
Contact Us: Reach out to us to inquire about our imaging product and services. Provide us with the details of your requirements, including the area of interest, resolution, and any other specifications.
If there is high urgency for imagery, please let us know that this is a time sensitive project. Any project deadlines should be included with your initial contact.
Request a quote: Ask for a formal quote for the satellite maps you need. The quote should include information such as the cost, delivery timeline, licensing terms, and any additional services like data processing or analysis.
Review the quote: Evaluate the quote provided by us and if needed, we can negotiate the terms, pricing, or any specific requirements that may not be fully covered.
Confirm the order: Once you are satisfied with the quote and have reached an agreement, confirm your order. We will guide you through the necessary steps for payment and delivery.
Receive the satellite maps: After the order is confirmed and payment is processed, you will receive the satellite map data in the specified format. This may include downloading the data from a secure portal or receiving physical media, depending on delivery method.
Utilize the satellite maps: With the satellite maps that you receive, you can utilize it for your intended purposes, such as GIS data, 3D terrain maps, disaster, geospatial data, and other applications as needed.

What Are Satellite Imagery Raw Files?

Satellite map raw files refer to the unprocessed and unedited data captured by satellite sensors. These files contain the raw data received by the satellite sensors, including the reflected or emitted electromagnetic radiation from the Earth’s surface.

Satellite map raw files typically come in specialized formats specific to each satellite sensor or provider. These formats may include formats like GeoTIFF (georeferenced Tagged Image File Format) or ENVI (Environment for Visualizing Images). The raw files preserve the original sensor readings, which can include various spectral bands, radiometric information, and geometric parameters.

Raw files require processing to convert them into usable formats, such as georeferenced images or digital elevation model(DEM). Processing steps may involve radiometric and geometric corrections, atmospheric compensation, calibration, orthorectification, and mosaicking, among others.

Once processed, raw files can provide valuable information for various GIS data applications, including 3D terrain maps, agriculture production maps, vegetation maps, and disaster maps.

How To Download Satellite Maps in FTP

To download satellite maps from an FTP (File Transfer Protocol) server, you can follow these general steps:

Obtain the FTP server information: Get the FTP server details from the satellite maps provider or the source you are accessing. This includes the FTP server address, username, password, and potentially the directory path to the imagery files.
Choose an FTP client: Select an FTP client software or application that allows you to connect to the FTP server and perform file transfers. Some popular options include FileZilla, WinSCP, Cyberduck, or the built-in FTP functionality of certain web browsers.
If you are unable to download an FTP client due to software locks, Windows has a built in FTP Protocol that can be accessed by copying the URL of the FTP server in your Windows File Explorer.
Depending on the method to connect to the FTP, you will need credentials including a Username and Password to access these file.
Most FTP clients will allow you to Copy and Paste or Drag and Drop the files from the client window to your local files.

Remember to comply with any terms and conditions associated with the satellite map data, including usage restrictions, licensing agreements, and any attribution requirements specified by the provider.

For any other questions or for a consultation, please contact us.

TripleSat

TripleSat Satellite Sensor

(0.8m)

TripleSat Satellite Image Gallery

TripleSat Satellite Sensor Specifications

IMAGING Corporation Satellite Sensors

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Frequently Asked Questions